rationalisaient

form-of imperfect indicative plural third-person

rationaliserの第三人称複数未完了直説法

English Meaning

third-person plural imperfect indicative of rationaliser

Les ingénieurs rationalisaient les méthodes de production pour améliorer l'efficacité.

エンジニアたちは生産方法を合理化して効率を向上させていた。

The engineers were rationalizing the production methods to improve efficiency.